Sash-center.



No. 632,329. Patented Sept. 5, I899.

B. T. TEAKLE.

SASH CENTER.

(Application med Oct. 22, 1898.)

(No ModeL I NiTED STATES ATENT rica.

SASH-CENTER.

SPECIFICATION forming part of Letters Patent No. 632,329, dated September 5, 1899.

Application filed October 22, 1898. Serial No. 694,301. (No model.)

To all whom it mag concern.-

Be it known that 1, ROBERT T. TEAKLE, a citizen of the United States, residing at Detroit, in the county of Wayne and State of Michigan, have invented certain new and useful Improvements in Sash-Centers, of which the following is a specification, reference being had therein to the accompanying drawlngs. 1

The invention consists in the construction of a sash-center or transom-pivot of light and inexpensive construction which gives a light and dust proof joint and also which enables me to reverse the sash-that is, turn it inside out or cause it to assume any desired intermediate angle.

The invention further consists in the construction, arrangement, and combination of the various parts, all as more fullyhereinafter described.

In the drawings, Figure 1 is a perspective View of my sash, showing it as in use as a transom-pivot with the sash partially open, the window sash and frame being shown partly broken away to illustrate its construction below the pivot. Fig. 2 is a vertical section through the center, the sash being turned at right angles in the frame. Fig. 3 is a detached perspective view of the parts comprising my improved device; and Fig. 4 is a horizontal section through the sash and frame above the center, the center itself being shown in elevation.

The center may be applied as a transompivot, or to pivot an ordinary window-sash in its frame, or to pivot the sash which is hung with its weights and cords, in which construction the sash is made in two parts.

A may represent the window-frame or the frame in which the sash B is hung upon opposite sides of the center. The frame is provided with stops B B and the sash is pro vided with complementary stops 0 C Q is the plane or face upon which the sash and frame meet and turn and is what I call the parting face or joint.

The center preferably has a joint or meeting face, which is on a diiferent plane from the joint Q. The manner in which I prefer to form the joint to obtain this result is as follows:

C isthe sash member, which may be a plate,

but preferably is a hollow casing. The object of making it hollow may be twofold first, to lighten the casting, and, second, to

provide a housing for the spring-latch, which will be referred to hereinafter.

E is a complementary plate, which forms what I will call the frame-plate, said plate being provided with apivot-pin G. The plate '0 is also provided with a tubular pin G,

adapted to receive the pin G, and is held therein by a screw I engaging the interior screw-thread in the pintle G, as plainly shown in Fig. 2. This pivoted pin E, as will be observed, is at one side of the center of the plates and preferably at the forward edge thereof. When thus secured together, the two parts may turn about the pin. The plates are provided with suitable screw-holes J, by means of which they may be secured to their respective members. I

It will be seen that the joint through the center is at one side of the joint at the face Q, and therefore a break-joint is formed which effectively prevents dust, or light, or sound coming through the joint at the center any more than at other points in the length of the sash.

I may and preferably do arrange a rabbeted jointD on the meeting faces of the two plates, in the construction here shown forming one part of this joint on the flange F of the plate E and the other part on the plate 0. This rabbeted joint, even if on a plane with face Q, would give a light and dust proof joint, though not so perfect as when the center joint is at one side of the joint between the meeting faces of the sash members.

I may and preferably do provide a friction device or brake to hold the two parts in any adjusted relation to which they may be moved. The construction I have shown for effecting this consists of the pin K, sliding in a bearing L on. the plate E and actuated by a spring The pin is forced by the spring against the inner face of the flange or wall of the plate 0, and this may be provided with a series of notches a to form locking-pins for the center. The center may be used with or without the spring friction device, as desired.

The center beingthus constructed the plate E is secured to the frame with its upper face or the bearing for the other plate on the line which is within the face Q or what I call the parting-face, and the plate C is secured to the sash in proper relation to bear therein and make a tight joint at Q as well as with the other sash member.

It is evident that by turning the sash the members may be secured, respectively, to the frame and the sashin the well-known manner.

It will be seen that in the closed position of the sash as shown arranged in the drawings the joint Q between the sash and the frame and forming what I call the parting-joint at the middle is out of line with the joint S between the two parts of the center itself, so that even if the wood should shrink or swell neither dust, light, nor sound can find a direct passage through the center, as will be perfectly obvious by examining Fig. 4.

That I claim as my invention is 1. The combination with a sash and a frame in which it is pivoted having parting-faces opposite the pivotal point, of a center therefor, comprising two members secured respectivel y to the frame and sash and pivoted one upon the other, the joint' between said members being in a different plane from that of said pai'tingfaces of the sash and frame.

2. The combination with a frame and sash of a center therefor comprising two segmental circular members pivoted to each other and having fiat sides adjacent to the pivot, said members being secured respectively to the frame and sash with their flat sides arranged at one side thereof to locate the pivots near one face of the sash.

3. In a sash-center, the combination of the plate E forming one member of the center, of the barrel-shaped member 0 forming the other member thereof, pivotal connection between the two and a spring-dog within the barrel-shaped member adapted to hold the sash in its adjusted position.

In testimony whereof I affix my signature in presence of two witnesses.

ROBERT T. TEAKLE.

Vitnesses:

JAMES VVHITTEMOi-iit, O'r'ro F. BAR'IHEL. 

